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P100 vs T800H

Composite · grade comparison

P100 and T800H are both composite grades. T800H is the stronger of the two: tensile strength 5,490 MPa (796 ksi) against 2,410 MPa (350 ksi) for P100, about 128% more. T800H is the more ductile: elongation 1.9% versus 0.32% for P100. T800H is lighter (1.81 g/cm³ vs 2.15 g/cm³ for P100) and P100 is stiffer (758 GPa vs 294 GPa).

T800HChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

P100 vs T800H: properties

P100T800H

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

758 GPa110 Msi
294 GPa42.6 Msi

Tensile Strength (Ultimate)

2,410 MPa350 ksi
5,490 MPa796 ksi

Elongation at Break

0.32%
1.9%

Compressive Strength

—
2,400 MPa348 ksi

Physical

Density and transition temperatures.

Density

2.15 g/cm³0.08 lb/in³
1.81 g/cm³0.07 lb/in³

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

520 W/m·K300 BTU/hr·ft·°F
35 W/m·K20.2 BTU/hr·ft·°F

Specific Heat Capacity

710 J/kg·K0.17 BTU/lb·°F
750 J/kg·K0.18 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

-1.5 µm/m·K-0.81 µin/in·°F
-0.56 µm/m·K-0.31 µin/in·°F

Max Service Temperature (short-term)

2,000°C3,632 °F
500°C932 °F

Same in both: Max Service Temperature (continuous) 400°C752 °F · Min Service Temperature -269°C-452 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

2.5×10⁻⁶ Ω·m98.4 µΩ·in
1.4×10⁻⁵ Ω·m551 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

88 / 100
92 / 100

UV / Weathering Resistance

95 / 100
85 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

12 / 100
18 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

750 MJ/kg322,442 BTU/lb
500 MJ/kg214,962 BTU/lb

Embodied Carbon (primary production)

45 kg CO₂/kg
34 kg CO₂/kg

Embodied Water

—
600 L/kg71.9 gal/lb

Same in both: Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

1,121 kN·m/kg
3,033 kN·m/kg

Specific Stiffness (E / density)

352.6 MN·m/kg
162.4 MN·m/kg

Thermal Diffusivity

340.6 mm²/s
25.8 mm²/s

Thermal Shock Resistance Index

-1,140
-1,167

Strength versus weight

Yield strength against density for every composite grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

1101001,000510Density (g/cm³)Yield strength (MPa) — log scale

Manufacturing and finishing

CapabilityP100T800H
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

P100 vs T800H — frequently asked

Is T800H stronger than P100?

Yes. T800H has a typical tensile strength of 5,490 MPa (796 ksi) against 2,410 MPa (350 ksi) for P100 — about 128% more.

Which is cheaper, P100 or T800H?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, P100 or T800H?

T800H. Its machinability rates poor (18/100) against not recommended (12/100) for P100.

Ready to make it?

Upload a CAD file and FabDigit prices the part in P100 and T800H side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.